Chad here. Pretty new to the forum if this isn't posted in the right place let me know please.


I have a 2001 blazer 4.3L 4x4 and ill be driving down the road in 2Hi and then 4LO will start to flash but won't change over until I throw it in park or neutral and then it'll shift into 4lo on its own and sometimes I have trouble getting it back into 2Hi. Ive never had this happen before until this blazer and would really approciate any help with this. Thank you!!!